Ignitions and Electrical Charging Systems

SIERRAMARINE

ALTERNATOR

$300.73

SKU: S08C 18-6261

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

This is a Sierra Marine 18-6261 Alternator, designed for late model Volvo Penta marine engines. It is a 12-volt, 65 Amp unit featuring an internal regulator and a single groove serpentine pulley. This alternator replaces several OEM and aftermarket part numbers, ensuring broad compatibility within its intended engine applications.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSIERRAMARINE
Part NumberS08C 18-6261

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy